微波辐射对NaClO漂白麦草浆白度与黏度的影响  

Effect of Microwave Irradiation on Whiteness and Viscosity of Wheat Straw Pulp Bleached with Sodium Hypochlorite

作　　者：孙保平[1] 邓宇[2] 

机构地区：[1]河南省安阳工学院,安阳455000 [2]天津科技大学材料科学与化学工程学院,天津300222

出　　处：《纸和造纸》2009年第3期22-25,共4页Paper and Paper Making

基　　金：天津应用基础及前沿技术研究计划重点项目"微波能生物质漂白工艺机理与方法研究"(07JCZDJC03700);河南省自然科学基金"微波辐射麦草浆清洁漂白方法研究"(0611022100)

摘　　要：考察微波辐射对麦草浆漂白白度与黏度的影响。影响微波辐射漂白纸浆的因素有三项:微波辐射时间、辐射功率和次氯酸钠用量。当微波辐射功率为240W,辐射时间为2.5min,次氯酸钠用量为4.2%时,白度达61%ISO以上,纸浆黏度不低于630mL·g-1。此外,通过与水浴的对比实验,发现微波加热2min纸浆达到的白度相当于水浴加热70min,这对于节能是非常有意义的。Effective factors on pulp bleaching, such as microwave power and irradiation time, and amount of sodium hypochlorite added, were studied. Over 61%ISO of pulp whiteness could be achieved by adding 4.2% sodium hypochlorite and operating the microwave oven at 240W for 2.5 minutes. The pulp treated by microwave irradiation in 2 minutes could be bleached as same whiteness as bleaching in 70 minutes of water bath. microwave treatment in bleaching was helpful in energy-saving.

关 键 词：微波漂白 麦草浆 黏度 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]